Klemp Gregory J CHALLENGER II accident near Neshkoro, WI
On June 30, 2011, a Klemp Gregory J CHALLENGER II (airplane) was involved in an accident near Neshkoro, WI. 1 person died. Damage to the aircraft: substantial.
- Date
- June 30, 2011
- Place
- Neshkoro, WI
- Aircraft
- Klemp Gregory J CHALLENGER II · Airplane
- Injuries
- 1 fatal, 1 serious, 0 minor
- Damage
- Substantial
- Position
- 44.041°N, 89.304°W
- NTSB ID
- 20110630X60036
Official records · CEN11FA433
- Public docket: reports, statements and exhibits from the investigation
NTSB summary
HISTORY OF FLIGHT On June 29, 2011, approximately 1945 central daylight time, a Klemp Challenger II experimental amateur-built airplane, N12911, impacted trees and terrain during a forced landing following a loss of engine power near Neshkoro, Wisconsin. The private pilot received serious injuries and the non-pilot rated passenger was fatally injuried. The airplane sustained substantial damage during the forced landing. The airplane was registered to and operated by a private individual. Visual meteorological conditions prevailed, and a flight plan was not filed for the 14 Code of Federal Regulations Part 91 personal flight. The local flight departed a private grass airstrip approximately 1930. According to the pilot, he planned on performing a local flight for the passenger who intended on purchasing and building a Challenger airplane. Prior to takeoff, the pilot, who was seated in the rear seat, completed a pre-flight check and engine run-up, and he noted the cylinder head temperature was approximately 250 degrees Fahrenheit. The pilot observed no anomalies during the pre-flight check, engine run-up or takeoff. During the initial climb at 1,200 feet above ground level (agl) while crossing over the runway, the engine experienced a partial loss of engine power. Seconds later, the engine lost total power, and the pilot initiated a forced landing to the private grass airstrip. The controls to restart the engine were located in the front seat position and could not be accessed by the pilot to attempt an engine restart. While maneuvering the airplane for the forced landing to t
Probable cause
The total loss of engine power during the initial climb due to a cold seizure as a result of a broken fan V-belt. Contributing to the accident was the passenger's interference with the flight controls during the forced landing.
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Browse: Wisconsin
Source: NTSB aviation accident database (US government, public domain). Findings may be preliminary or later revised by the NTSB. Not a complete global record.
